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Preparation technology of chlorobutyl rubber used for internal rubber layer of rubber tube of automobile air conditioning

A technology of chlorinated butyl rubber and automobile air conditioner, which is applied in the field of preparation of chlorinated butyl rubber, and can solve problems such as hardening and insufficient heat resistance

Inactive Publication Date: 2012-05-23
宁波市天普橡胶科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The prior art is used to make chlorinated butyl rubber for the inner rubber layer of the rubber hose of the automobile air conditioner, and it will harden when it is applied at a temperature above 120°C; therefore, the chlorinated butyl rubber of the prior art has the problem of insufficient heat resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] Product Name: Chlorinated butyl rubber for inner rubber layer of automobile air-conditioning hose

[0021] Formula: formula unit is percentage by weight;

[0022] Rubber raw material: chlorinated butyl rubber 49.68%;

[0023] Reinforcing agent: 22.35% of quick-pressed furnace black, 12.40% of non-polluting high-definition semi-reinforced furnace black, and 9.94% of mica powder:

[0024] Active agent: magnesium oxide 0.15%, stearic acid 0.50%, polyethylene glycol 0.25%;

[0025] Antiaging agent: N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine 0.50%; 2-mercaptobenzimidazole 0.50%;

[0026] Vulcanization accelerator: zinc oxide 2.48%, dibenzothiazole disulfide 0.50%, tetramethylthiuram disulfide 0.75%;

[0027] preparation

[0028] Preparation conditions, equipment

[0029] Ambient pressure: one atmosphere;

[0030] Ambient temperature: room temperature;

[0031] Preparation equipment: open rubber mixing machine, pressurized internal mixer, rubber filter extruder...

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PUM

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Abstract

The invention discloses a preparation technology of chlorobutyl rubber used for an internal rubber layer of a rubber tube of an automobile air conditioning, comprising the process flows of making up a formula and preparing. In the invention, the technical scheme utilizing a heat-resisting modified formula to match with a corresponding preparation method is adopted, thus overcoming the problem of poor heat-resistant quality of the chlorobutyl rubber in the prior art. The provided preparation technology of the chlorobutyl rubber used for the internal rubber layer of the rubber tube of the automobile air conditioning prepares chlorobutyl rubber the application temperature of which is minus 30-135 DEG C, and the chlorobutyl rubber is used for manufacturing the inner rubber layer of the automobile air conditioning, thus reaching the purpose of improving heat-resistant property.

Description

technical field [0001] The present invention relates to a preparation of chlorinated butyl rubber, specifically refers to a kind of chlorinated butyl rubber used for the inner rubber layer of automobile air-conditioning rubber hose, which is used to manufacture rubber products such as automobile air-conditioning rubber hose, and whose application temperature is -30°C to 135°C preparation technology. Background technique [0002] Chlorobutyl rubber is widely used in the manufacture of rubber products such as automobile tires and hoses. The prior art is used to make chlorinated butyl rubber for the inner rubber layer of the rubber hose of the automobile air conditioner, and it will harden when it is applied at a temperature above 120°C; therefore, the chlorinated butyl rubber of the prior art has the problem of insufficient heat resistance . Contents of the invention [0003] Aiming at the problems and deficiencies in the above-mentioned prior art, the present invention ad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/28C08K13/02C08K3/04C08K3/34C08K3/22C08K5/09C08K5/18C08K5/378C08K5/47C08K5/40
Inventor 尤建义
Owner 宁波市天普橡胶科技股份有限公司
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